Centrifugal separator.



W. H, LAWSON.

CENTRIFUGAL SEPARATOR.

KAPPLIOATION FILED JUNE 17, 1910.

.11 38 60? Patented Sept. 17, 1912.

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- APPLICATION FILED JUNE 17, 1910. 1,038,607, Patented Sept. 17, 1912.

3 SHEETS-SHEET 2.

- W. H. LAWSON.-

GENTRIFUGAL SEPARATOR.

APPLICATION FILED JUNE 17, 1910. 1,038,607.. Patented Sept. 17,1912.

3 SHEETS-SHEET 3.

WELCOME H. LAWSON, F POUGHKEEPSIE, NEW YORK.

CENTRIFUGAL SEPARATOR.

Specification of Letters Patent.

Patented Sept. 17, 1912.

Application filed June 17, 1910. Serial No. 567,365.

To all whom it may concern:

Be it lmown that I, VVnLcoMn H. LAWSON, a citizen of the United States, and a resident of Poughkeepsie, in the county of Dutchess and State of New York, have invented certain new and useful Improvements in Centrifugal Separators, of which the following is a specification.

My invention relates to centrifugal separating anachines and the object of my invention is to provide a machine of this character which. will separate the fluids from the solids.

In carrying out my invention, I provide a preliminary clarification by centrifugal force in a rapidly rotated compartment. The heavier portion of the solids is deposited in this chamber adjacent to the periphery thereof and when this space is filled, the machine is stopped and the solids removed from compartment. The lighter liquid flowing near the center of thiscompartment is led by an appropriate passage to the filtering compartment. This filtering compartment is connected so as tofrevolve with the first mentioned compartment. It is provided with a plurality of super-imposed filtering sections which I have shown as cone shaped in form, and forming separator filtering chambers or channels, the liquid being led to each of these chambers from a passage near the outer surface of the filtering compartment and passes vertically upward or downward, depending on the at; rangement of the plates and the connecting passages, through the filtering material, and is then led from each chamber to a passage which leads to the outlet.

By a. slight change in the arrangement of the passages, I am able to cause the liquid to flow from theEfirst mentioned compartment upwardly adjacent to the inlet conduit which is located at the center or in line with the axis of rotation of the bowl, and thendownwardly by centrifugal action and through the filtering material to. the outer periphery of the separating elements, or I 'may cause the liquid to flow from said first chamber directly, to the periphery of the bowl and then through the separating medium inwardly toward the axis of the bowl and thence to the foutlet.

Referring tothe drawings, which form a part of this specification, Figure 1, is a central sectional vertical view through a separating machine embodyingmy invention. Fig. 2, is a view disclosing a modified construction. Fig. 3, 1s a fragmentary seciional view through two of the cone shaped plates, the plates being separated and disclosing the filtering paper located between same. Fig. 4, is a vertical elevational, view disclosing the exterior appearance of the central conduit and chamber which is lov cated Within the separator bowl. F i 5. is abottom view of the construction lllllS- trated" in Fig. 4. Fig. 6, is a plan view of a washer which is used irrthe construction disclosed in Fig. 2. Fig. 7, is a fragmentary view shown partly in section of a portion of one of the separator plates and illustrates the shape of the channels formed therein. Fig. 8, is a cross sectional view on line ca -a of Fig. 4. Fig. 9, is a cross sectional view on line 7 z of 4.

In view of the fact that to illustrate the filtering paper or cloth usedias a filtering medium and located between the cone shaped plates, the said paper or filtering medium is illustrated in Figs. 1 ahd 2 by heavy black linest but, the exact construction is clearly illustrated in Fig. 3, in which the filtering medium is shown in cross section.

A, indicates a vertical shaft having a. flanged top A on the top of which is mounted the separator bowl A the said separator bowl and flange A being. connected together by rivets A. Restingl within the bowl A on the bottom thereof is a casting B having a chamber B provided with in ,clined top wallls B on the top of which is formed a shoulder B. which is provided upwardly fronnsaid shoulder tol the. top of through which fluid flows downwar to the chamber B. The-casting B is forth 1' provided with a circular flange B which eX- rior 13 of which forms the inle\ionduit tnds around the, base of the inclined wall ner ends of the tubes B",.are extended at the with an annu lr groove B, and extending.

the bowl is a tilbular portion B- the intebe to the bowl A.

Referring to Fig. 3, C indicates one of the .cone shaped separating plates, a number of which are used in superimposed relation as illustrated in Figs-1 and 2. Each of these plates/is provided with a body portion indicated by C which. is formed corrugated in shape-to provide U or V shaped channels C -C etc., on one side of the plate, and C -C etc.,on the opposite side, and formed 5 integral with said plates at the bottom edge thereof is a circular fiangedportion C provided with holes indicated by C This flanged portion is also provided with annular grooves C on one side, and annular projecting beads indicated by C" on the opposite side. Formed integral with the body portion C at the top thereof is an annular collar portion which is provided with annular grooves indicated by C and annular projections indicated by C". Dindicates paper or' other suitable filtering material .formed in sheet-s and laid between the upper surface of the cone shaped element C and the lower surface of the opposite cone shaped elements, its upper and lower edges being forced into the annular grooves C and C, respectively, by. the projecting beads C and C respectively, and as the projecting beads enter the grooves carrying the edges of the paper therein, the

.paper is strengthened to some degree and held firmly in said-recesses, and by this means, aiperfect liquid-tight joint is also secured between the element C at both points, so that fluid introduced into the chambers C under pressure due to the cen; trifugal action of the bowl, will not be forced past said joints. The holes C com-' municate with the chambers formed in the upper surface of the element C and the holes C indicated by dotted lines communi- 1 cate with the channels C formed in the lower side of the element C. The holes C communicate with the channels C and the holes C indicated. by dotted lines communicate with the channels 0 and when the elements C are connected together in superimposed relation with the filtering paper D between them, the lower edges of ,55 the channels C are set in alinement withtheupper edges of the channels C thereby holding and supporting the filteringpaper D throughout the distance fromthe top collar tothe lower flange and forming on 6 each side of said filtering paper V shaped channels which are in open communication with each other through the pores of the paper D as will be readily understood. The casting B is provided with four wings B which extend from the shoulder B to.

nearly the top of the casting and near the top end are four extra wings indicated by B and spaced equal distance between the wings B and the upper edges of said wings are threaded as indicated to permit the ring F to screw thereon. G indicates a cover which is provided with acone sha ed top G and the cover is provided with a threaded flange G which engages with a screw on the bowl, whereby the cover is connected to the.bowl. The cover G is provided with outlets G* for fluid and'is also provided with an inwardly extending flange G which overlaps the tops of the wings B and B, so that when the cover is screwed down to its fixed position and clamps the packing material G to form a joint between. the

cover and bowl, the flange G will rest on the tops of the wings B and B and force the element B firmly against the bottom of the bowl A as will be readily understood. I

The elements C are assembled as illustrated in Fig. 1, in superimposed relation with the filtering medium clamped between them as heretofore set forth, and are held at their outer edges by the cover G" acting through the packing ring G and at their inner edges by the ring F which is screwed down on the top of the collar portions as illustrated, the collar F extending from the wings B to the inner wall of the top of the cover at the pointindicated by G By the arrangement of the elements C when ;'assembled a plurality of vertical passages H are provided which are in open communication with the holes 0 in t e collar portion of the element C. It will be noted that the holes C communicate with the channels C and that the holes C communicate with the channels C Iindicates a receptacle provided with a depending spout 1 into which the fluid to be separated such as milk for illustration is poured, and J indicates a receptaclewhich is provided with a bottom J from which extendsupwardly, a cone shaped portion J which issupported close to the surface of the cover G, but not in contact therewith.

The vessel-J is provided with an outlet J The difi'erence between the construction disclosed in Fig. l and that of Fig. 2 lies in the fact that in the use of the construction shown in Fig. 2 the passages 13 are closed by a screw plug K, and the passagesL etc, in the casting B are provided. A further change consists in forming a passage G in the cover G- which communicates with the'outlet passage G-, and the top of the passages H are closed by a ring M which fits over the top wings B and B and the outer edge of which rests on the top of the top elementsC, and a shorter ring than the ring G indicatedby N is used, by meansof which the elements Cv are held togetherg.

dius from the axis of the bowl to said out v lets G.

- are thrown to the partly 'ln'usin the construction shown in Fin".

' order to eliect a more rapid separation, the

1, a part of the fluid to be separated is fed into the receptacle 1 and passes downward. through the spout l and passage B, into the chamber B", where the heavier particles periphery oi the chamber B by the centrifugal action of the bowl, which is rotated through the medium of the shaft- A, and the lighter particles are forced. to the center of the chamber B and pass downward through the thence through the openings C and C (see Fig.3.) indicated in dotted lines in Fig. 1, and thence through -the filtering medium D to the. passages C and C and through the passages C throughthe open. ings (l and C to the passages and up Ward through said passages to the outlets G, Where it is thrown by the centrifugal action into the vessel J, and carried therefrom through thewutlet J, the solid port-ions being held on the under surfaces of the filtering medium D, in the channels C anclthe top surfaces of the filtering material in the channels (P. It is obvious, therefore, that the ilow of the fluid rated flows upward in. one channel through the filtering material D and downward in the adjacent channel throu h the filtering material D, so that the sell s are deposited on'the under side of said. filtering medium, and partly on the upper side thereof.

' It will he noted that in both constructions illustrated in Figs. 1 and 2, that the outlets .G are not far removed from the axis of'the separator bowl, and. that, therefore, the force tending to cause a separation of the fluids, is the diflerence hetween the ralet G Referring to the operation of the con struction illustrated in Fig. 2, the fluid is fed through the spout I into the passage B and downward-to the channel B, where the heavier solids are separated by centrifugal force and lodged in the bottom of the charm her B, andthe lighter fluid is carried upward through the openings L into the passage B and through the openings C and 0 into the channels (1 and (1 respectively, and through the filtering medium D to the openings 0 and respectively to the.

annular chamber B and thence upward through the passages A and G to the out- It will be seen, therefore, that the diflerence in constructions shown in Figs.

" 1 and 2 effect a difference in the direction of loe noted that in each case .gravlty tending to separate the fluid .the solids HIS the same-,since the the flow between the elements I the I force of ance frgoni'the axis of the howlito th'elluid outlets G" is the same in each case.

to be sepashaped elements clamped between said elements, pose set forth.

C, and it will from If it is desired to increase the force in plugs located in the sidesof the bowl A may he removed. (see F 1g. 2) from the bowl al and the force of the centrifugal action tending to separate the solids from the fluids Will he increased in proportion to the idistauce that thesaid outlets are located from the axis of the bowl relative to the outlets G as will. be readily understood.

passages 13 and B to the annular chamber B and In the constructions set forth, I have disclosed a separator of high eiiiciency and ver sin e in its arts and have rovided for the easy separation and cleaning of the parts.

Having thus described my invention What l claim as new is:

l. A bowl having a plurality of elements therein arranged in superimposed relation, each of said elements having radial channels formed in the upper and lower surfaces t:liereot;'and a filtering medium clamped between said elements, said channels con- I straining the liquid to be filtered to pass from one element to the adjacent element, for the purpose set forth.

2. A bowl having a plurality of cone therein arrauged in superimposed relation, each of said cone shaped elements having channels formed in one of the surfaces thereof, and a filtering medium for the pur 3. A howl having a plurality of cone fshapcd elements therein aranged 1n superimposed relation, each of said cone shaped elements having channels formed 1n the upper and lower surfaces thereof; and a filtering medium clamped between said elements, for the purpose set forth.

A bowl having a plurality of cone shaped elements located therein, each of said elements comprising a body portion having channels in its faces, and having a upper and lower surcollar provided with openings which extend from said channels through collar; said body portion also being provided with a circular flanged portion having openings which communicate with said channels and the in erior of said bowl; and a filtering medium held between said elements.

5. In a centrifugal separator of the cl1aractor described; a cone shaped element comprising a body portion provided with a plurality of radial channels formed in its upper and lower sides and having a collar portion and provided with a central opening at its inner periphery, which collar portion is provided with a plurality of passages which lead'trom certainot said channels to Sitlll central opening; saidhody portion being also provided with a circulanlian'gcd ortion havin n'o )enin s which 'eommuni-' P i :1

cats with certain other of said channels and extend therefrom to the outer periphery of I said flanged portion.

6. A bowl having a plurality of elements therein arranged in superimposed relation,

each of said elements having separate independent channels formed in one of the surfaces extending from near the outer to near the inner periphery thereof; a filtering medium clamped between said elements; a tum bular conduit extending through the center of said elements; and means for directing a fluid from said tubular conduit; between said elements and through said filtering medium to a passage leading to an outlet:

5 7. In combination, a bowl having a. castgo'nicating therewith; said casting being also provided with a plurality of wings, the upper ends of which are provided with a thread; a plurality of elements each of which is provided with channels; a filtering material located between said elements; a feone shaped separator element the surface gof which is provided with a plurality of l channels and the inner and outer periphery of which is provided with relatively thick- ;ened flanged portions having passages 10- 1 rated therein which communicate with said 1 channels.

14. In a centrifugal separating machine,- a cone shaped separatm element the surface ;of which is provided with a plurality of 2 channels and the inner and outer periphery nut engaging said thread for clamping said elements firmly to said casting; said elements being provided with passages located in their outer and inner peripheries; and

means for 7 directing a fluid through said tubular conduit and through said passages and said filtering medium to an outlet.

8. In combination, a bowl; a casting rest- 5 ing in said bowl; and provided with a central conduit and a lower chamber; and having outlets located in the lower end of said chamber; aplurality of cone-shaped separator elements located in superimposed relation withinsaid bowl; a filtering medium held between Said elements; and means for leading a fluid tov the outer periphery of said elements and between same to an outlet.

9. In combination, a bowl; a castingr'esting in said bowl; and provided with a coin tral conduit and a lower chamber; and having outlets located in the lower end of said chamber; a plurality of cone shaped separator elements each of which is provided with a plurality of separate conduits, and

located in superimposed relation within said bowl; a filtering medium held between said elements; and means for directing the fluid through said outlets to the outer pcriphery of said elements and between same to an outlet.

10. In combination, a bowl; a casting resting in said bowl; and provided with a central conduit and a lower chamber; and

having outlets located in the lower end of said chamber; a plurality of separator elements each of which is provided with a plurality of separate radial conduits formed in both the upper and lower surfaces, and

located in superimposed relation within 'ing the fluid through clamped between the walls of said conduits to theouter periphery of said elements and.

said bowl; a filtering medium held between said elements; and means for directsaid outlets and between same through said filtering medium 1 to an outlet.-

11. In a centrifugal separator, a central conduit adapted to receive the liquid to be .filtered, a plurality'of superimposed cone- ;shaped filtering mediums surrounding said conduit, means for conducting. the fluid to periphery thereof, and thence to be conducted to an outlet.

12. In a centrifugal separating machine, a cone shaped separator element provided with relatively thickened flanges at its inner :and outer peripheries and passages located in said flanges.

13. In a centrifugal separating machine, a

of which is provided with relatively thick- ;encd flanged portions having passages 10- 3 cated therein which communicate with said channels, and having a depression or groove in said thickened flanged portion, for the purpose set forth.

15. In a centrifugal separating machine,

a cone shaped separator element the surface.

of which is provided with a plurality of channels and the inner and outer periphery of which is provided with relatively thick- .ened flanged portions, having passages lo- 'cated therein which commumcate with saidsaid chamber, and a shoulder formed near the bottom thereof; a plurality of cone.

shaped separator elements provided vwith relatively. thickened flanged portions at .t-heir outer and inner periphery; thel'ower element having its inner flanged portion rest ng on sald top shoulder and Its outer flanged portion resting on said last named corrugated cone shaped elements arrangedin superposed relation, the corrugation of one element being located opposite the cor rugations in the ad acent element and contiguous therewitlu-so to form, independent ducts, and means for holding said elements in cooperative relation. Y

18. In a centrifugal separating machine, aplurality of separator elements compris' ing a cone shaped casting having a plurality of radial channels fori'ncd in the upper and lower surface, and each provided with a thickened flanged portion at its inner and at the 'outer'periphery, said elements being held together 1n superposed relation and each of said elements being provided with passages in said outer and inner flanges, the

passages in the inner periphery of one element communicating with the passages in the outer periphery of the adjacent element, v

substantially as described.

19. In a centrifugal separating machine, plurality of separator elements each comprising a cone shaped casting having a plurality of radial channels formed in the upper and lower surface, and each provided with a thickened flanged portion at its inner and at the outer periphery, said elements being held together in superposed relation and each of said elements being provided with passages in said outer and inner flanges, the passages in the inner periphery of one element communicating with thepassages in the outer periphery of the adjacent element, and a filtering medium located between said elements, substantially as described.

Signed at New York city in the county of New York and" State of New York this 7th day of June A. D. 1910.

WELCOME H. LAWSON. Witnesses: r

FRANK M. ASHLEY, A. T. SCHARPS. 

